Preharvest Foliar Applications of Citric Acid, Gibberellic Acid and Humic Acid Improve Growth and Fruit Quality of ‘Le Conte’ Pear (Pyrus communis L.)

Mosa, Walid F. A.; El-Megeed, Nagwa Abd; Ali, Muhammad Moaaz; Abada, Hesham S.; Ali, Hayssam M.; Siddiqui, Manzer H.; Sas-Paszt, Lidia

doi:10.3390/horticulturae8060507

Cited by 9 publications

(1 citation statement)

References 70 publications

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“…The fertilizer must first penetrate the leaf before accessing the cytoplasm of the cell within the leaf since it contains the nitrogen nutrient. Thus, depending on the spray liquid's physicochemical characteristics, the nutrient penetrates the outer leaf cuticle layer (Mosa et al, 2022). The cuticle layer of the leaf is thought to exhibit the highest opposition as one of the primary components of the foliar fertilizer passage that is treated with plant nutrients.…”

Section: Mechanism Of Foliar Fertilizer Uptake Through the Plant Leafmentioning

confidence: 99%

Spraying Technology and Foliar Application Result in a Smooth Layer of the Spray: a Literature Review

Alheidary

2023

Basrah J. Agric. Sci.

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Using of foliar fertilizer application is an important issue in many crops plantation in different countries. Various studies have been conducted on this method, especially with fruits and horticulture. Few studies were performed on essential crops such as maize compared to the orchards. Concerning crops, most of these studies were performed using foliar spraying with phosphorus, and potassium, and a few attempts were carried out with foliar fertilizer during the season at different concentrations starting from the first stage of the plant. The foliar application may be sprayed with a suitable concentrate depending on the type of crop planted, growth stage, leaves age, and physicochemical properties of the sprayed liquid. As reported in the current literature, there are previous studies on this application with insufficient knowledge of mechanisms and factors governing the nutrient uptake by leaves that still need to be improved. The insufficient information about the effect of foliar fertilizer at different application rates is one of the reasons that the study focused on it, which was probably the leading cause of sometimes controversial effects with foliar fertilizers being reported. Most previous studies revealed that is necessary to apply foliar fertilizer on the plant leaves at a proper concentration and application rate compatible with the age of the crop applied. The results also indicated that a suitable concentration of foliar fertilizer no doubt leads to improved fertilizer effectiveness and can even increase plant growth activity, especially when spraying with modern technology. For an optimum both of the crop vegetative growth and yield response to foliar fertilization, it is possible to diagnose the optimum growth stage of the plant and leaf age for the starting of foliar fertilizer application related to metrological conditions such as the air temperature, and relative humidity at the time of spraying. It is necessary to recommend the crop growth stage before foliar application at a known application rate and concentration to a crop to achieve maximum efficiency at low cost as possible.

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Section: Mechanism Of Foliar Fertilizer Uptake Through the Plant Leafmentioning

confidence: 99%

Spraying Technology and Foliar Application Result in a Smooth Layer of the Spray: a Literature Review

Alheidary

2023

Basrah J. Agric. Sci.

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Putrescine, in Combination with Gibberellic Acid and Salicylic Acid, Improves Date Palm Fruit Quality via Triggering Protein and Carbohydrate Accumulation and Enhancing Mineral, Amino Acid, Sugar, and Phytohormone Acquisition

Talaat,

Nesiem,

Gadalla

et al. 2023

J Plant Growth Regul

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Putrescine (Put), gibberellic acid (GA3), and salicylic acid (SA) are involved in improving fruit growth and development. This is the first study investigating the effect of 1 mM Put, 100 mg L-1 GA3, and 100 mg L-1 SA on Phoenix dactylifera, cv. Zaghloul fruits. The experiment was conducted in a completely randomized block design during two successive seasons and five treatments [control (distilled water spray), Put, Put + GA3, Put + SA, and Put + GA3 + SA] were sprayed at the Hababouk (cell division) stage and Kimri [unripe green (cell elongation)] stage. Our results showed that all treatments significantly improved the yield and quality of ‘Zaghloul’ fruit by increasing the dry matter, crude fiber, ash, total soluble solids, (reducing, non-reducing, and total soluble) sugars, carbohydrate, protein, nitrogen, phosphorus, potassium, calcium, magnesium, sodium, zinc, iron, and manganese content as well as the peroxidase and catalase activity. Compared with the control treatment, exogenous applications also enhanced the amino acid (glutamic acid, aspartic acid, proline, glycine, alanine, arginine, cysteine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, serine, threonine, tyrosine, valine) acquisition and phytohormone (indole-3-acetic acid, cytokinins, GA3, SA) content, while decreasing the percentage of moisture, total acidity, total phenols, and tannins. The novel evidence indicates that among all treatments, application of diamine (Put), in combination with phytohormones (GA3 and SA), has the greatest effect on improving ‘Zaghloul’ fruit yield by up-regulating the nutrient acquisition, sugar accumulation, amino acid profile, antioxidant response, and phytohormone performance. These findings support the use of Put in conjunction with GA3 and SA to improve fruit yield and quality.

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Revolutionizing Maize Farming with Potassium Silicate Foliar Spray and Water Management Techniques

Elmahdy

Ahmed

Bakr

et al. 2023

Silicon

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By integrating various irrigation and agriculture management techniques, it is possible to considerably improve water productivity. In order to examine the impact of irrigation scheduling (1.0 and 1.2 pan evaporation coefficient), planting method (ridge and raised bed), and potassium silicate foliar application (0 ppm and 100 ppm) on maize (Zea mays L) growth, yield, and water-related factors, a two-season field experiment was conducted in a hot-dry climate region of southern Egypt during 2017 and 2018. The results showed that the seasonal irrigation requirement and consumptive use were higher at 1.2 than the 1.0 pan evaporation coefficient, irrespective of the planting methods. Raised bed planting method saved about 19% of applied water (two seasons average) compared to the ridge planting method. Plants treated with potassium silicates attained higher yields compared to the control, irrespective of the irrigation level and planting method. Moreover, irrigation at 1.2 pan evaporation resulted in the lowest daily ETc values, i.e., 3.15, 6.0, 6.7, and 2.8 mm for plant growth stages, i.e., ini, dev, mid and late. This resulted in the lowest Kc values (0.47, 0.91, 1.16, and 0.61) at different plant growth stages (ini, dev, mid and late). Based on the study findings, it is recommended to use a deficit irrigation of 0.15% based on accumulated pan evaporation values of 1.2, coupled with raised bed planting method and the application of 100 ppm potassium silicates, for optimal maize water productivity and net return.

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Preharvest Foliar Applications of Citric Acid, Gibberellic Acid and Humic Acid Improve Growth and Fruit Quality of ‘Le Conte’ Pear (Pyrus communis L.)

Cited by 9 publications

References 70 publications

Spraying Technology and Foliar Application Result in a Smooth Layer of the Spray: a Literature Review

Spraying Technology and Foliar Application Result in a Smooth Layer of the Spray: a Literature Review

Putrescine, in Combination with Gibberellic Acid and Salicylic Acid, Improves Date Palm Fruit Quality via Triggering Protein and Carbohydrate Accumulation and Enhancing Mineral, Amino Acid, Sugar, and Phytohormone Acquisition

Revolutionizing Maize Farming with Potassium Silicate Foliar Spray and Water Management Techniques

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